MAX2634AXT/V+T

General Description

The MAX2634 low-noise amplifier (LNA) with low-power shutdown mode is optimized for 315MHz and 433.92MHz automotive remote keyless entry (RKE) applications. At 315MHz, the LNA achieves 15.5dB power gain and a 1.25dB noise figure while only consuming 2.5mA of supply current from a 2.2V to 5.5V power supply. An integrated logic-controlled low-power shutdown mode reduces power consumption to 0.1µA and replaces the two transistors typically required to implement the shutdown function in discrete-based RKE LNA solutions. The device further reduces component count by integrating the output matching and DC-blocking components, and only requires a single inductor to match the input for best noise figure and input return loss.

The device is available in a small 6-pin (2.0mm x 2.2mm x 0.9mm) lead-free SC70 package for automotive applications that require visual inspection of PCB solder connections.

Applications

● Remote Keyless Entry (RKE)

● Tire Pressure Monitoring Systems (TPMS)

● Security

● Garage Door Openers

● Telemetry Receivers

Features

● Optimized for 308MHz, 315MHz, 418MHz, and 433.92MHz

● 2.2V to 5.5V Supply Voltage Range

● Low Operating Supply Current 2.5mA (typ), 4mA (max)

● Logic-Controlled 1µA (max) Shutdown

● Typical Performance at 315MHz 1.25dB Noise Figure

-16dBm Input IP3 15.5dB Power Gain

● Automotive Temperature Range

-40°C to +125°C

● ESD Rating of ±2.0kV (HBM) on All Pins

● AEC-Q100 Qualification

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